Kivy安卓实战 | 工具箱: 导航栏

© Karobben

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本文GitPage地址

CryptoWatch-Kivy          1.13
Kivy                      2.0.0
Kivy-Garden               0.1.4
kivy-garden.wordcloud     1.0.0
kivymd                    0.104.2.dev0

Navigation

Example of Navigation: KivyMD GitHub

Documentation: Kivymd

Attention: “MDNavigationLayout” was abandoned, using “NavigationLayout” as substitute.

Root:
-   MDNavigationLayout:
+   NavigationLayout:
        ScreenManager:
            Screen_1:
            Screen_2:

Example 1

from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout
from kivymd.app import MDApp
KV = '''
Screen:
    NavigationLayout:
        ScreenManager:
            Screen:
                BoxLayout:
                    orientation: 'vertical'
                    MDToolbar:
                        title: "Navigation Drawer"
                        elevation: 10
                        left_action_items: [['menu', lambda x: nav_drawer.set_state("open")]]
                    Widget:
        MDNavigationDrawer:
            id: nav_drawer
            ContentNavigationDrawer:
'''
class ContentNavigationDrawer(BoxLayout):
    pass
class TestNavigationDrawer(MDApp):
    def build(self):
        return Builder.load_string(KV)
TestNavigationDrawer().run()

Separate the KV and PY

mkdir Layout
tree

.
├── Layout
│   └── Navigation_Draw.kv
└── main.py
1 directory, 2 files

KV file ``` MDNavigationDrawer: id: nav_drawer

```
</details>
```python
from kivy.uix.screenmanager import Screen
from kivymd.uix.button import MDRectangleFlatButton
from kivy.lang import Builder
from kivymd.app import MDApp
def OPEN(file):
    return open(file).read()
class MainApp(MDApp):
    def F_test(self, *args):
        print(123)
    def build(self):
        screen = Screen()
        Widget_navi = Builder.load_string(OPEN("Layout/Navigation_Draw.kv"))
        screen.add_widget(Widget_navi)
        screen.add_widget(
            MDRectangleFlatButton(
                text="Hello, World",
                pos_hint={"center_x": 0.5, "center_y": 0.5},
                on_release = self.F_test
            ))
        return screen
MainApp().run()

Tags

Example: GitHub

from kivy.uix.screenmanager import Screen
from kivymd.uix.button import MDRectangleFlatButton
from kivy.lang import Builder
from kivymd.uix.floatlayout import MDFloatLayout
from kivymd.uix.tab import MDTabsBase
from kivymd.app import MDApp
def OPEN(file):
    return open(file).read()
class Tab(MDFloatLayout, MDTabsBase):
    '''Class implementing content for a tab.'''
class MainApp(MDApp):
    def F_test(self, *args):
        print(123)
    def build(self):
        screen = Screen()
        # loading Navigation (left)
        Widget_navi = Builder.load_string(OPEN("Layout/Navigation_Draw.kv"))
        # loading navigation tags
        Widget_tabs = Builder.load_string(OPEN("Layout/Navigation_Tabs.kv"))
        self.Widget_tabs = Widget_tabs
        screen.add_widget(Widget_tabs)
        screen.add_widget(Widget_navi)
        return screen
    # Functions for Navigation Tab
    def on_start(self):
        Tab1 = Tab(text="alarm")
        Tab1.add_widget(
            MDRectangleFlatButton(
                text="Hello, World",
                pos_hint={"center_x": 0.5, "center_y": 0.5},))
        self.Widget_tabs.ids.tabs.add_widget(Tab1)
        self.Widget_tabs.ids.tabs.add_widget(Tab(text="alarm-bell"))
    # Functions for Navigation Tab Switch
    def on_tab_switch(
        self, instance_tabs, instance_tab, instance_tab_label, tab_text):
        '''Called when switching tabs.
        :type instance_tabs: <kivymd.uix.tab.MDTabs object>;
        :param instance_tab: <__main__.Tab object>;
        :param instance_tab_label: <kivymd.uix.tab.MDTabsLabel object>;
        :param tab_text: text or name icon of tab;
        '''
        instance_tab.ids.label.text = tab_text
MainApp().run()

KV file: Navigation_Tabs.kv``` MDToolbar: title: “Example Tabs”

MDTabs: id: tabs text: “1” on_ref_press: app.on_ref_press(*args)

1 directory, 3 files

First Function

Convert atcg to ATCG

touch Layout/Seq.kv
tree

.
├── Layout
│   ├── Navigation_Draw.kv
│   ├── Navigation_Tabs.kv
│   └── Seq.kv
├── lib
│   └── bio_seq.py
├── libWidget
│   └── Seq.py
└── main.py

Seq.kv``` MDBoxLayout:

id: boxs
orientation: "vertical"
functions: None#{"aA":"a"}
label_c: 0, 0, 1, 1
MDTextField:
    id: seq_input
    hint_text: "Input DNA Hear"
    pos_hint: {"center_x": .5}
MDIconButton:
    id: upper
    icon: "android"
    user_font_size: "64sp"
    on_release: boxs.functions#["aA"]
    pos_hint: {"center_x": .5}
MDLabel:
    id: seq_result
    text: "Result shows Herer"
    color: boxs.label_c
    pos_hint: {"center_x": .5}

```
</details>
```python Seq.py
#from kivy.lang import Builder
from kivy.lang import Builder
class FunctionWidget():
    def OPEN(self, file):
        return open(file).read()
    def PP(self):
        #self.print(self.Function_page.ids.seq_input.text)
        self.Function_page.ids.seq_result.text = self.Function_page.ids.seq_input.text.upper()
    def main(self):
        self.Function_page = Builder.load_string(self.OPEN("Layout/Seq.kv"))
        self.Function_page.ids.upper.on_release = self.PP
        return self.Function_page

from kivy.uix.screenmanager import Screen
from kivymd.uix.button import MDRectangleFlatButton
from kivy.lang import Builder
from kivymd.uix.floatlayout import MDFloatLayout
from kivymd.uix.tab import MDTabsBase
from kivymd.app import MDApp
# Function libs
def OPEN(file):
    return open(file).read()
class Tab(MDFloatLayout, MDTabsBase):
    '''Class implementing content for a tab.'''
class MainApp(MDApp):
    def F_test(self, *args):
        print(123)
    def build(self):
        screen = Screen()
        # loading Navigation (left)
        Widget_navi = Builder.load_string(OPEN("Layout/Navigation_Draw.kv"))
        # loading navigation tags
        Widget_tabs = Builder.load_string(OPEN("Layout/Navigation_Tabs.kv"))
        self.Widget_tabs = Widget_tabs
        # loading The Function pages
        # Loading Sequencs function page
        screen.add_widget(Widget_tabs)
        screen.add_widget(Widget_navi)
        return screen
    # Functions for Navigation Ta
    def on_start(self):
        from lib.bio_seq import Bio as FunBioSeq
        Fun = FunBioSeq()
        print(Fun.List())
        def PP():
            print(Function_page.ids.seq_input.text)
            Function_page.ids.seq_result.text = Function_page.ids.seq_input.text.upper()
            Fun = FunBioSeq()
        List = {"Seq":{'icon':"dna",'title':"Sequencs Tools"}}
        Tab1 = Tab(text="Bio")
        Tab1.add_widget(
            MDRectangleFlatButton(
                text="Hello, World",
                pos_hint={"center_x": 0.5, "center_y": 0.5},))
        self.Widget_tabs.ids.tabs.add_widget(Tab1)
        for i in List.keys():
            tmp_tab = Tab(text=List[i]['icon'])
            #Function = Builder.load_string(OPEN("Layout/"+i+".kv"))
            from libWidget.Seq import FunctionWidget
            Fun = FunctionWidget()
            tmp_tab.add_widget(Fun.main())
            self.Widget_tabs.ids.tabs.add_widget(tmp_tab)
    # Functions for Navigation Tab Switch
    def on_tab_switch(
        self, instance_tabs, instance_tab, instance_tab_label, tab_text):
        '''Called when switching tabs.
        :type instance_tabs: <kivymd.uix.tab.MDTabs object>;
        :param instance_tab: <__main__.Tab object>;
        :param instance_tab_label: <kivymd.uix.tab.MDTabsLabel object>;
        :param tab_text: text or name icon of tab;
        '''
        instance_tab.ids.label.text = tab_text
MainApp().run()

GitHub Repository: Karobben Toolbox
Android Release: Karobben Toolbox

Enjoy~
本文由Python腳本GitHub/語雀自動更新
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本文GitPage地址
GitHub: Karobben
Blog:Karobben
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